Search Results - "Curtis, Jason H."

Drought, agricultural adaptation, and sociopolitical collapse in the Maya Lowlands by Douglas, Peter M. J., Pagani, Mark, Canuto, Marcello A., Brenner, Mark, Hodell, David A., Eglinton, Timothy I., Curtis, Jason H.

“…Significance The Terminal Classic decline of the Maya civilization represents a key example of ancient societal collapse that may have been caused by climate…”
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Carbon storage in the Mississippi River delta enhanced by environmental engineering by Shields, Michael R., Bianchi, Thomas S., Mohrig, David, Hutchings, Jack A., Kenney, William F., Kolker, Alexander S., Curtis, Jason H.

“…River deltas have contributed to atmospheric carbon regulation throughout Earth history, but functioning in the modern era has been impaired by reduced…”
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A long-term decrease in the persistence of soil carbon caused by ancient Maya land use by Douglas, Peter M. J., Pagani, Mark, Eglinton, Timothy I., Brenner, Mark, Curtis, Jason H., Breckenridge, Andy, Johnston, Kevin

“…The long-term effects of deforestation on tropical forest soil carbon reservoirs are important for estimating the consequences of land use on the global carbon…”
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Methods and future directions for paleoclimatology in the Maya Lowlands by Douglas, Peter MJ, Brenner, Mark, Curtis, Jason H

“…A growing body of paleoclimate data indicates that periods of severe drought affected the Maya Lowlands of southeastern Mexico and northern Central America,…”
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Terminal Classic drought in the northern Maya lowlands inferred from multiple sediment cores in Lake Chichancanab (Mexico) by Hodell, David A., Brenner, Mark, Curtis, Jason H.

“…We present new density records from sediment cores taken along a depth transect in Lake Chichancanab, Mexico. The data reveal in great detail the climatic…”
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An 85-ka record of climate change in lowland Central America by Hodell, David A., Anselmetti, Flavio S., Ariztegui, Daniel, Brenner, Mark, Curtis, Jason H., Gilli, Adrian, Grzesik, Dustin A., Guilderson, Thomas J., Müller, Andreas D., Bush, Mark B., Correa-Metrio, Alexander, Escobar, Jaime, Kutterolf, Steffen

“…Drill cores obtained from Lake Petén Itzá, Petén, Guatemala, contain a ∼85-kyr record of terrestrial climate from lowland Central America that was used to…”
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Abrupt Temperature Changes in the Western Mediterranean over the past 250,000 Years by Martrat, Belen, Grimalt, Joan O., Lopez-Martinez, Constancia, Cacho, Isabel, Sierro, Francisco J., Flores, Jose Abel, Zahn, Rainer, Canals, Miquel, Curtis, Jason H., Hodell, David A.

“…A continuous high-resolution Western Mediterranean sea surface temperature (SST) alkenone record spanning the past 250,000 years shows that abrupt changes were…”
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Preclassic environmental degradation of Lake Petén Itzá, Guatemala, by the early Maya of Nixtun-Ch’ich by Birkett, Brooke A., Obrist-Farner, Jonathan, Rice, Prudence M., Parker, Wesley G., Douglas, Peter M. J., Berke, Melissa A., Taylor, Audrey K., Curtis, Jason H., Keenan, Benjamin

“…Abstract Paleolimnological evidence indicates the ancient Maya transformed terrestrial ecosystems by felling forest vegetation to construct large…”
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A Holocene Sediment Record of Phosphorus Accumulation in Shallow Lake Harris, Florida (USA) Offers New Perspectives on Recent Cultural Eutrophication by Kenney, William F, Brenner, Mark, Curtis, Jason H, Arnold, T Elliott, Schelske, Claire L

“…We studied a complete Holocene sediment record from shallow (zmax = 9.7 m) Lake Harris, Florida (USA) to infer the historical development of the lake and its…”
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Solar Forcing of Drought Frequency in the Maya Lowlands by Hodell, David A., Brenner, Mark, Curtis, Jason H., Guilderson, Thomas

“…We analyzed lake-sediment cores from the Yucatan Peninsula, Mexico, to reconstruct the climate history of the region over the past 2600 years. Time series…”
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Paleoenvironmental history of the West Baray, Angkor (Cambodia) by Day, Mary Beth, Hodell, David A, Brenner, Mark, Chapman, Hazel J, Curtis, Jason H, Kenney, William F, Kolata, Alan L, Peterson, Larry C

“…Angkor (Cambodia) was the seat of the Khmer Empire from the 9th to 15th century AD. The site is noted for its monumental architecture and complex…”
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Phase relationship between sea level and abrupt climate change by Sierro, Francisco J., Andersen, Nils, Bassetti, Maria A., Berné, Serge, Canals, Miquel, Curtis, Jason H., Dennielou, Bernard, Flores, Jose Abel, Frigola, Jaime, Gonzalez-Mora, Beatriz, Grimalt, Joan O., Hodell, David A., Jouet, Gwenael, Pérez-Folgado, Marta, Schneider, Ralph

“…Direct traces of past sea levels are based on the elevation of old coral reefs at times of sea level highstands. However, these measurements are discontinuous…”
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Drought Coincided with, but Does Not Explain, Late Holocene Megafauna Extinctions in SW Madagascar by Sean W. Hixon, Jason H. Curtis, Mark Brenner, Kristina G. Douglass, Alejandra I. Domic, Brendan J. Culleton, Sarah J. Ivory, Douglas J. Kennett

“…Climate drying could have transformed ecosystems in southern Madagascar during recent millennia by contributing to the extinction of endemic megafauna…”
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Sediment cores from shallow lakes preserve reliable, informative paleoenvironmental archives despite hurricane-force winds by Kenney, William F, Mark Brenner, T. Elliott Arnold, Jason H. Curtis, Claire L. Schelske

“…Comparison of sediment cores collected in 1999 and 2013 from shallow Lake Harris, Florida, USA showed that the sediment maintained stratigraphic integrity…”
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Ecology of testate amoebae (thecamoebians) in subtropical Florida lakes by Escobar, Jaime, Brenner, Mark, Whitmore, Thomas J., Kenney, William F., Curtis, Jason H.

“…Fifty-seven surface sediment samples from 35 Florida lakes were collected to study testate amoebae. Seven genera, 17 species, and 28 strains were identified in…”
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Possible role of climate in the collapse of Classic Maya civilization by Hodell, David A, Curtis, Jason H, Brenner, Mark

“…Temporal variations in oxygen isotope and sediment composition in a 4.9-m sediment core from Lake Chichancanab in Mexico were used to reconstruct a continuous…”
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Quantification of drought during the collapse of the classic Maya civilization by Evans, Nicholas P, Bauska, Thomas K, Gázquez-Sánchez, Fernando, Brenner, Mark, Curtis, Jason H, Hodell, David A

“…The demise of Lowland Classic Maya civilization during the Terminal Classic Period (~800 to 1000 CE) is a well-cited example of how past climate may have…”
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Caribbean Lead and Mercury Pollution Archived in a Crater Lake by Cooke, Colin A, Curtis, Jason H, Kenney, William F, Drevnick, Paul, Siegel, Peter E

“…Lead and mercury have long histories of anthropogenic use and release to the environment extending into preindustrial times. Yet, the timing, magnitude, and…”
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Onset of “Hudson Strait” Heinrich events in the eastern North Atlantic at the end of the middle Pleistocene transition (∼640 ka)? by Hodell, David A., Channell, James E. T., Curtis, Jason H., Romero, Oscar E., Röhl, Ursula

“…Heinrich events are well documented for the last glaciation, but little is known about their occurrence in older glacial periods of the Pleistocene. Here we…”
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Natural and anthropogenic sources of lead, zinc, and nickel in sediments of Lake Izabal, Guatemala by Hernández, Elisandra, Obrist-Farner, Jonathan, Brenner, Mark, Kenney, William F., Curtis, Jason H., Duarte, Edward

“…Sediments in Lake Izabal, Guatemala, contain substantial lead (Pb), zinc (Zn), and nickel (Ni). The lack of historical data for heavy metal concentrations in…”
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